ARC8 Essential GX AXS

2025 MountainTrail Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €6,499 Last known price
Travel: 150 / 130 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–52t
Gear range: 520%
Weight: 12.2 kg 26.9 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

MD 160–179
LG 177–190

Components

16 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

ARC8 Essential, full carbon Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

1 part

Brakes
- Shimano Deore XT

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 465mm

Stack 615mm

Wheelbase 1222mm

Head angle 64.0°

Seat angle 76.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	465	495
Stackmm	615	628
Top tube lengthmm	596	652
Seat tube lengthmm	410	440
Head tube lengthmm	100	115
Head tube angle	64°	64°
Seat tube angle	76°	76°
Chainstay lengthmm	430	430
Wheelbasemm	1222	1259
Front centermm	795	832
Bottom bracket dropmm	40	40
Bottom bracket heightmm	334	334
Standover heightmm	702	704
Fork rakemm	44	44
Trailmm	134	134
Stack/reach ratio	1.32	1.27

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 12.2 kg

26.9 lb

Suspension

Suspension configuration: Full suspension
Front travel: 150 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 17.9 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

150 mm

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,810 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

17.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Shifting

Electronic

388 of 1,849 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,849 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 35.5 km/h

Total gear range 520%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 17.9–92.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2025
Lowest gear: 1384 bicycles with this information, 74.6% of the class
Highest gear: 1384 bicycles with this information, 74.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds
Specification	This bicycle ARC8 Essential GX AXS	ARC8 Essential - Fox Factory XT Di2	ARC8 Essential - Fox Performance XT
Frame
Bicycle weight	12.2 kg	Not informed	Not informed
Frame weight	Not informed	1.8 kg	1.8 kg
Drivetrain
Rear sprockets	12	Not informed	Not informed
Largest sprocket	52	50	51
Lowest gear	17.9 in	18.6 in	18.2 in
Cockpit
Derailleur hanger	UDH	Not informed	Not informed
Shifting	Electronic	Electronic	Mechanical
Other specifications
Wheel material	Aluminum	Carbon	Aluminum